400384794 has 16 divisors (see below), whose sum is σ = 801140832. Its totient is φ = 133399728.

The previous prime is 400384783. The next prime is 400384801. The reversal of 400384794 is 497483004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304 + ... + 28299.

It is an arithmetic number, because the mean of its divisors is an integer number (50071302).

Almost surely, 2^400384794 is an apocalyptic number.

400384794 is an abundant number, since it is smaller than the sum of its proper divisors (400756038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400384794 is a wasteful number, since it uses less digits than its factorization.

400384794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30941.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 400384794 is about 20009.6175375743. The cubic root of 400384794 is about 737.0424895433.

The spelling of 400384794 in words is "four hundred million, three hundred eighty-four thousand, seven hundred ninety-four".